DISCOVER LYNK II User Manual
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DISCOVER LYNK II User Manual

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(950-0025)
LYNK II SMA SUNNY ISLAND
USER MANUAL
805-0041 REV A
1

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Summary of Contents for DISCOVER LYNK II

  • Page 1 (950-0025) LYNK II SMA SUNNY ISLAND USER MANUAL 805-0041 REV A...

  • Page 2: Table Of Contents

    Connecting LYNK II to the SMA Network ........12 LYNK II and Sunny Island Network Terminations....... . 13 Sunny Island Battery Temperature Sensor .

  • Page 3: Audience, Safety, Messages, And Warnings

    Introduction This Application Note provides information about integrating network-enabled Discover Lithium Batteries using the LYNK II Communication Gateway with SMA Sunny Island inverter-chargers. 1. AUDIENCE, SAFETY, MESSAGES, AND WARNINGS 1.1 Audience Configuration, installation, service, and operating tasks should only be performed by qualified personnel in consultation with local authorities having jurisdiction and authorized dealers.

  • Page 4: General Warnings

    1.3 General Warnings Do not crush, disassemble or dispose of the battery module in fire or the garbage. This product is made of recyclable materials and must be recycled. WARNING ELECTRIC SHOCK AND FIRE HAZARD • This equipment must only be installed as specified. •...

  • Page 5: Personal Protective Equipment

    • Installation Manual Sunny Island 4.4M / 6.0H / 8.0H (en-33) Visit https://www.sma.de/en/ for the most recent version of published documents. Discover Battery Documentation Visit http://discoverbattery.com for the most recent version of published documents, including Discover Lithium battery user manuals and the LYNK II Installation and Operation Manual (805-0033).

  • Page 6: Overview

    • Review and confirm equipment compatibility and correct sizing. • Configure the LYNK II Communication Gateway’s CAN out pins to match the CAN in pins of the power conversion equipment.

  • Page 7: Compatibility

    • Sunny Island 6048-US 3.3 Minimum Battery System Capacity Battery charge and discharge rates are managed automatically by the Discover Lithium Battery and SMA Sunny Island device. Using large solar arrays with battery banks that are too small can exceed the operating limits of the battery to charge and possibly lead to the BMS triggering over-current protection.

  • Page 8: Lynk Ii Can Hardware Termination And Can Out Pin Configuration

    • Disconnect power and all connections to LYNK II before attempting to configure header jumpers. NOTE • LYNK II terminates the AEbus and LYNK Network by default. Do not remove the termination jumper inside LYNK II unless instructed to do so by Discover Battery.

  • Page 9: Lynk Ii Can Out - Rj45 Pin Assignments For Sunny Island Inverters

    4.2 LYNK II CAN Out - RJ45 Pin Assignments for Sunny Island Inverters CAN signals (CAN H, CAN L, CAN GND) can be assigned to any pin of the RJ45 connector by adjusting the jumpers on the header board. 4.2.1 Sunny Island Pin Assignments...

  • Page 10: Battery Protection - Off-Grid

    Sunny Island switches to either standby mode or off. The Discover Battery BMS reports SOC to Sunny Island through LYNK II Gateway but does not override the threshold settings. Refer to the relevant Sunny Island Manual for how to use and set up Battery Protection.

  • Page 11: Installing And Connecting Lynk Ii To The Sma Network

    • Do not plug an AEbus or LYNK RJ45 network cable or terminator into the 10/100 Ethernet port of the LYNK II. • Do not connect a CAT5 cable from the AEbus, LYNK, or Ethernet ports of the LYNK II to a WAN or MODEM port of a network router.

  • Page 12: Enabling Lynk Ii To Communicate With Sma Sunny Island Devices

    CANbus network. 6.1 Connecting LYNK II to the SMA Network Connect the LYNK II Gateway CAN out port to the ‘ComSync In’ port on the Sunny Island inverter-charger using a CAT5 cable. Terminate the ComSync communication bus at both ends.

  • Page 13: Lynk Ii And Sunny Island Network Terminations

    2. Using a USB cable with a Type-B mini-plug, connect the 64-bit Windows 10 device running LYNK ACCESS software to the USB port on LYNK II. Ensure LYNK II is powered and connected to the correct end of the CANbus network.

  • Page 14: Configuring Sunny Island

    7. CONFIGURING SUNNY ISLAND 7.1 Setting Up Sunny Island 4548-US and 6048-US Before connecting LYNK II to the Sunny Island network, update the firmware on Sunny Island 4548-US and 6048-US to version 7 .3 or later. The following instructions are for a system with a single Sunny Island in an off-grid application.

  • Page 15: Setting Up Sunny Island 4.4M, 6.0H, And 8.0H With Legacy Sunny Remote Control

    Refer to the Sunny Island Manual to install a system with multiple Sunny Island inverters. After installing the batteries described in the Discover Battery manual, follow the SMA Quick Configuration Guide (QCG) instructions to set up the Sunny Island for use with Discover Lithium batteries.

  • Page 16: Setting Up Sunny Island 4.4M, 6.0H, And 8.0H From The Integrated Web Interface

    Figure 7. Sunny Island Remote Control - Init System 3. When replacing batteries in an existing system with Discover Lithium batteries, turn clockwise the button on the Sunny Remote Control and select ‘New Battery.’ Press the button to confirm your selection of ‘New Battery.’...

  • Page 17: Lynk Ii And Sunny Island Communication

    The LYNK II Communication Gateway provides power conversion and monitoring devices with BMS real-time data in a closed-loop configuration to optimize control over the charging process in solar applications. LYNK II also enables the remote monitoring of Discover Lithium battery SOC and data logging of multiple sites using the data monitoring services offered by off-grid inverter systems.
  • Page 18 NOTES...

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